1802444428512 has 1440 divisors, whose sum is σ = 6862105071360. Its totient is φ = 455914967040.

The previous prime is 1802444428487. The next prime is 1802444428583. The reversal of 1802444428512 is 2158244442081.

1802444428512 is a `hidden beast` number, since 1 + 80 + 2 + 44 + 442 + 85 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 30549905539 + ... + 30549905597.

It is an arithmetic number, because the mean of its divisors is an integer number (4765350744).

Almost surely, 2^{1802444428512} is an apocalyptic number.

1802444428512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1802444428512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3431052535680).

1802444428512 is an abundant number, since it is smaller than the sum of its proper divisors (5059660642848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1802444428512 is an frugal number, since it uses more digits than its factorization.

1802444428512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 45.

The spelling of 1802444428512 in words is "one trillion, eight hundred two billion, four hundred forty-four million, four hundred twenty-eight thousand, five hundred twelve".